We look at the division of 42849542 by 452 
The aim is to understand the frequency of 452 in 42849542.

Step 1:
The number 452 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 452

Going ahead to step 2:
When dividing 42 by 452, we get 0 with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Grab the next digit (8) from the dividend, add it to 42, then carry on: 428 / 452

Advancing to step 3:
If we divide 428 by 452, we get 0 and a remainder of 428.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 428 leaves us with 428.
Include the next digit (4) from the dividend after 428, then repeat: 4284 / 452

Let's proceed to step 4:
4284 divided by 452 is 9 with a remainder of 216.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we take 4068 away from 4284, we end up with 216.
Take the next digit (9) from the dividend and append it to 216, then repeat: 2169 / 452

Going ahead to step 5:
452 goes into 2169 4 times with a remainder of 361.
Put 4 as the next digit of the answer. 
Result so far: 94.0
If we take 1808 away from 2169, we end up with 361.
Take the next digit (5) from the dividend and append it to 361, then repeat: 3615 / 452

On to step 6:
If we divide 3615 by 452, we get 7 and a remainder of 451.
Use 7 as the next digit of our solution. 
Result so far: 947.0
The remainder is 451 after subtracting 3164 from 3615.
Bring next digit (4) of the dividend behind the 451 and repeat the process: 4514 / 452

Advancing to step 7:
The number 452 fits into 4514 9 times, leaving a remainder of 446.
Put 9 as the next digit of the answer. 
Result so far: 9479.0
The remainder is 446 after subtracting 4068 from 4514.
Append the next digit (2) from the dividend to 446 and continue with: 4462 / 452

Going ahead to step 8:
4462 divided by 452 is 9 with a remainder of 394.
Use 9 as the next digit of our solution. 
Result so far: 94799.0
If we subtract 4068 from 4462, we get 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Moving on to step 9:
The number 452 fits into 3940 8 times, leaving a remainder of 324.
Write down 8 as next digit of the result. 
Result so far: 94799.8
Deduct 3616 from 3940 and we're left with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Step 10:
When dividing 3240 by 452, we get 7 with a remainder of 76.
Use 7 as the next digit of our solution. 
Result so far: 94799.87
The remainder is 76 after subtracting 3164 from 3240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 11:
The number 452 fits into 760 1 times, leaving a remainder of 308.
The next digit of our result is 1. 
Result so far: 94799.871
Subtracting 452 from 760 leaves us with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Going ahead to step 12:
452 goes into 3080 6 times with a remainder of 368.
The next digit of our result is 6. 
Result so far: 94799.8716
If we subtract 2712 from 3080, we get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

On to step 13:
3680 divided by 452 is 8 with a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 94799.87168
Subtracting 3616 from 3680 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 14:
640 divided by 452 is 1 with a remainder of 188.
Use 1 as the next digit of our solution. 
Result so far: 94799.871681
Subtract 452 from 640 to get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Step 15:
452 goes into 1880 4 times with a remainder of 72.
The number 4 becomes the next digit in our result. 
Result so far: 94799.8716814
If we take 1808 away from 1880, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 16:
452 can be fit into 720 1 times, resulting in a remainder of 268.
Record the quotient 1 as the next digit in the result. 
Result so far: 94799.87168141
The remainder is 268 after subtracting 452 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

After the division, we end up with 94799.87168141 and a remainder of 2.68e-07.